diff options
Diffstat (limited to 'net/disk_cache/sparse_control.h')
| -rw-r--r-- | net/disk_cache/sparse_control.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/disk_cache/sparse_control.h b/net/disk_cache/sparse_control.h index 0005f58..ee77b4b 100644 --- a/net/disk_cache/sparse_control.h +++ b/net/disk_cache/sparse_control.h @@ -1,4 +1,4 @@ -// Copyright (c) 2009 The Chromium Authors. All rights reserved. +// Copyright (c) 2009-2010 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. @@ -52,6 +52,10 @@ class SparseControl { // on disk and returns net::OK. Otherwise it returns a net error code. int Init(); + // Performs a quick test to see if the entry is sparse or not, without + // generating disk IO (so the answer provided is only a best effort). + bool CouldBeSparse() const; + // Performs an actual sparse read or write operation for this entry. |op| is // the operation to perform, |offset| is the desired sparse offset, |buf| and // |buf_len| specify the actual data to use and |callback| is the callback |